1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
|
/*
* SPDX-FileCopyrightText: 2020 Serge Hallyn
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <config.h>
#include <fcntl.h>
#include <stdio.h>
#include <errno.h>
#include <stdlib.h>
#include <string.h>
#include <pwd.h>
#include <stdbool.h>
#include "subordinateio.h"
#include "idmapping.h"
#include "subid.h"
#include "shadowlog.h"
bool subid_init(const char *progname, FILE * logfd)
{
FILE *shadow_logfd;
if (progname) {
progname = strdup(progname);
if (!progname)
return false;
log_set_progname(progname);
} else {
log_set_progname("(libsubid)");
}
if (logfd) {
log_set_logfd(logfd);
return true;
}
shadow_logfd = fopen("/dev/null", "w");
if (!shadow_logfd) {
log_set_logfd(stderr);
return false;
}
log_set_logfd(shadow_logfd);
return true;
}
static
int get_subid_ranges(const char *owner, enum subid_type id_type, struct subid_range **ranges)
{
return list_owner_ranges(owner, id_type, ranges);
}
int subid_get_uid_ranges(const char *owner, struct subid_range **ranges)
{
return get_subid_ranges(owner, ID_TYPE_UID, ranges);
}
int subid_get_gid_ranges(const char *owner, struct subid_range **ranges)
{
return get_subid_ranges(owner, ID_TYPE_GID, ranges);
}
static
int get_subid_owner(unsigned long id, enum subid_type id_type, uid_t **owner)
{
return find_subid_owners(id, id_type, owner);
}
int subid_get_uid_owners(uid_t uid, uid_t **owner)
{
return get_subid_owner(uid, ID_TYPE_UID, owner);
}
int subid_get_gid_owners(gid_t gid, uid_t **owner)
{
return get_subid_owner(gid, ID_TYPE_GID, owner);
}
static
bool grant_subid_range(struct subordinate_range *range, bool reuse,
enum subid_type id_type)
{
return new_subid_range(range, id_type, reuse);
}
bool subid_grant_uid_range(struct subordinate_range *range, bool reuse)
{
return grant_subid_range(range, reuse, ID_TYPE_UID);
}
bool subid_grant_gid_range(struct subordinate_range *range, bool reuse)
{
return grant_subid_range(range, reuse, ID_TYPE_GID);
}
static
bool ungrant_subid_range(struct subordinate_range *range, enum subid_type id_type)
{
return release_subid_range(range, id_type);
}
bool subid_ungrant_uid_range(struct subordinate_range *range)
{
return ungrant_subid_range(range, ID_TYPE_UID);
}
bool subid_ungrant_gid_range(struct subordinate_range *range)
{
return ungrant_subid_range(range, ID_TYPE_GID);
}
|
